Home / 2,253.12-3,109.56-1,368.84

Finding the Fourth Proportional to 2,253.12, 3,109.56 and 1,368.84

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Solution

The fourth proportional to 2,253.12, 3,109.56 and 1,368.84 is: 1,889.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.12 : 3,109.56 = 1,368.84 : x
  2. Step 2: Convert to fraction form
    2,253.12/3,109.56 = 1,368.84/x
  3. Step 3: Cross multiply
    2,253.12x = 3,109.56 × 1,368.84
  4. Step 4: Simplify right side
    2,253.12x = 4,256,490.11
  5. Step 5: Solve for x
    x = 4,256,490.11/2,253.12
  6. Step 6: Final answer
    x = 1,889.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.